A CoAP client sends to a CoAP server a request for information about a resource, the request for information including a time period option, wherein the time period option includes a first time period value that indicates a period of time prior to the sending of the request for information over which information about the resource is requested. The CoAP client receives a response to the request for information. In another embodiment, a CoAP client sends to a CoAP server a CoAP Observe registration relating to one or more resources, the CoAP Observe registration including an option, the option including a first value that indicates that the CoAP server should pause notifications for one or more registrations corresponding to one or more resources.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The CoAP client as claimed in claim 1, wherein the information about the resource comprises the resource over a specified period of time.
3. The CoAP client as claimed in claim 2, wherein the request for information further comprises a timestamp option, wherein the timestamp option comprises a first timestamp value, wherein the first timestamp value indicates that at least one timestamp corresponding to each representation of the resource is requested.
6. The CoAP server as claimed in claim 5, wherein the information about the resource comprises at least one representation of the resource over the period of time.
7. The CoAP server as claimed in claim 6, wherein the request for information further comprises a timestamp option, wherein the timestamp option comprises a first timestamp value, wherein the first timestamp value indicates that at least one timestamp corresponding to each of the at least one representation of the resource is requested.
10. The CoAP server as claimed claim 9, wherein the information about the resource over the specified period of time further comprises a timestamp corresponding to each of the representations of the resource included within the message.
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December 17, 2019
July 2, 2024
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